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Inflammatory myofibroblastic tumors of the skin and mucosal sites: A clinicopathological and molecular analysis of 3 cases with emphasis on differential diagnosis 皮肤及粘膜部位炎性肌成纤维细胞瘤:3例临床病理及分子分析,并着重于鉴别诊断。
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-10-01 DOI: 10.1016/j.anndiagpath.2025.152569
Danting Xiong , Xiaona Yin , Yongli Gan , Wenjuan Gan , Xiao Cheng , Ming Zhao
This study presents three molecularly confirmed cases of ALK-rearranged inflammatory myofibroblastic tumors (IMTs) occurring in superficial locations, demonstrating their rarity, clinicopathologic heterogeneity and diagnostic complexity. The series comprised tumors involving oropharyngeal mucosa, dermal/subcutaneous tissue of the forearm, and tongue mucosa. Histopathological evaluation revealed characteristic proliferations of spindle-to-ovoid cells arranged in fascicular patterns within variably collagenous to myxoid stroma, accompanied by chronic inflammatory infiltrates. Notable morphologic variations included: (1) rhabdomyoblastic differentiation evidenced by rhabdoid morphology and desmin, MyoD1 and myogenin co-expression in one case, histologically overlapping with inflammatory rhabdomyoblastic tumor; and (2) histiocytoid morphology featuring microvesicular cytoplasm in another case, resembling non-neural granular cell tumor. All cases exhibited strong diffuse cytoplasmic ALK immunoreactivity. Molecular profiling identified DCTN1(exon26)::ALK(exon20) fusions in two cases and TIMP3(exon1)::ALK(exon19) fusion in the lingual lesion, the latter corroborating established associations between TIMP3::ALK fusions and head/neck mucosal sites. With follow-up periods of 4–30 months post complete resection, all patients remained disease-free. These findings expand the recognized morphologic spectrum of cutaneous and superficial mucosal ALK-rearranged IMTs while underscoring the indispensable role of integrated histopathologic and molecular pathologic evaluation in differentiating these neoplasms from their histologic mimics, such as inflammatory rhabdomyoblastic tumor, non-neural granular cell tumor, and epithelioid fibrous histiocytoma/superficial ALK-rearranged myxoid spindle cell neoplasm.
本研究报告了三例发生在浅表部位的alk重排炎性肌纤维母细胞瘤(IMTs)的分子确诊病例,显示了它们的罕见性、临床病理异质性和诊断复杂性。这一系列肿瘤包括口咽粘膜、前臂真皮/皮下组织和舌粘膜。组织病理学检查显示梭形到卵形细胞的特征性增生,呈束状排列在不同的胶原到黏液样基质中,并伴有慢性炎症浸润。显著的形态学变化包括:(1)横纹肌母细胞分化为横纹肌样形态和desmin,一例MyoD1和myogenin共表达,组织学上与炎性横纹肌母细胞瘤重叠;(2)组织细胞样形态,胞浆呈微泡状,类似于非神经颗粒细胞瘤。所有病例均表现出较强的弥漫细胞质ALK免疫反应性。分子分析在两例中发现DCTN1(外显子26)::ALK(外显子20)融合,在舌病变中发现TIMP3(外显子1)::ALK(外显子19)融合,后者证实了TIMP3::ALK融合与头颈部粘膜部位之间的关联。完全切除后随访4-30个月,所有患者均无疾病。这些发现扩大了皮肤和浅表粘膜alk重排IMTs的已知形态谱,同时强调了综合组织病理学和分子病理学评估在区分这些肿瘤与它们的组织模拟物(如炎性横纹肌母细胞瘤、非神经颗粒细胞瘤和上皮样纤维组织细胞瘤/浅表alk重排黏液样梭形细胞肿瘤)方面不可或缺的作用。
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引用次数: 0
Histopathological variants of head and neck squamous cell carcinomas: A multicenter study in Latin America 头颈部鳞状细胞癌的组织病理学变异:拉丁美洲的一项多中心研究。
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-09-26 DOI: 10.1016/j.anndiagpath.2025.152565
Heitor Albergoni Silveira , Karina Helen Martins , Ana Lia Anbinder , Thais Aguiar Santos , Elton Fernandes Barros , Pollianna Muniz Alves , Cassiano Francisco Weege Nonaka , Ana Terezinha Marques Mesquita , Matheus Henrique Lopes Dominguete , Rafael Rodrigues Dias , Katya Pulido Díaz , Florence Juana Maria Cuadra-Zelaya , Bruno Augusto Benevenuto de Andrade , Elaine Maria Sgavioli Massucato , Andreia Bufalino , Thales Peres Candido Moreira , Anderson Tangerino Ferreira da Silva , Ana Carla Campos , Magdalena Raquel Torres Reyes , Mariângela Ottoboni Brunaldi , Jorge Esquiche León
Histopathological variants of head and neck squamous cell carcinoma (HNSCC) are uncommon and account for approximately 5–15 % of all HNSCC cases. Owing to their heterogeneous clinicopathological characteristics, a correct diagnosis can be challenging. We aimed to analyze the clinicopathological, histochemical (HC), immunohistochemical (IHC), and in situ hybridization (ISH) findings of HNSCC variants in a Latin American population. In total, 1415 HNSCCs were retrospectively evaluated in accordance with the 2023 World Health Organization criteria. Sixty-six (4.6 %) HNSCC variants were identified, including verrucous carcinoma (VC, n = 21), basaloid SCC (BSCC, n = 13), spindle cell SCC (SCSCC, n = 8), adenosquamous carcinoma (ASC, n = 6), clear cell SCC (CCSCC, n = 4), cuniculatum carcinoma (CC, n = 4), lymphoepithelial carcinoma (LC, n = 3), papillary SCC (PSCC, n = 2), acantholytic SCC (ASCC, n = 2), pigmented SCC (PigSCC, n = 2), and carcinoma with rhabdoid phenotype (CRP, n = 1). Histomorphology, supported by IHC (mainly p53 and Ki-67), allows the diagnosis of most cases of VC, CC, PSCC, ASCC, and PigSCC. Mutant-type p53 pattern is common in BSCCs. SCSCC diagnosis requires IHC to highlight the epithelial phenotype in most cases, almost all of which exhibit a mutant-type p53 pattern. Human papillomavirus-associated BSCC and SCSCC are rare. HC analysis supported by IHC is relevant for most ASC and CCSCC diagnoses. Owing to the inflammatory component, IHC may be crucial for highlighting LC cells, with potential Epstein–Barr virus infection. CRP diagnosis relies on IHC and ISH findings in strict clinical correlation. Therefore, detailed clinicopathological characterization of HNSCC variants is fundamental because it provides valuable data with diagnostic, therapeutic, and prognostic impacts.
头颈部鳞状细胞癌(HNSCC)的组织病理学变异并不常见,约占所有HNSCC病例的5- 15%。由于其异质的临床病理特征,正确的诊断可能具有挑战性。我们的目的是分析拉丁美洲人群中HNSCC变异的临床病理、组织化学(HC)、免疫组织化学(IHC)和原位杂交(ISH)结果。根据2023年世界卫生组织标准,回顾性评估了1415例HNSCCs。六十六人(4.6%)HNSCC变体,包括疣状癌(VC, n = 21),嗜碱性鳞状细胞癌(BSCC n = 13),梭形细胞鳞状细胞癌(SCSCC, n = 8) adenosquamous癌(ASC, n = 6),透明细胞鳞状细胞癌(CCSCC, n = 4) cuniculatum癌(CC, n = 4) lymphoepithelial癌(LC, n = 3),乳头状鳞状细胞癌(PSCC, n = 2), acantholytic鳞状细胞癌(为n = 2),色素鳞状细胞癌(PigSCC, n = 2),癌和杆状的表现型(CRP, n = 1)。免疫组化(IHC)支持的组织形态学(主要是p53和Ki-67)可以诊断大多数VC、CC、PSCC、ASCC和PigSCC。突变型p53在BSCCs中很常见。SCSCC的诊断需要免疫组化来突出大多数病例的上皮表型,几乎所有这些病例都表现为突变型p53模式。人乳头瘤病毒相关的BSCC和SCSCC是罕见的。免疫组化支持的HC分析与大多数ASC和CCSCC诊断相关。由于炎症成分,免疫组化可能是突出LC细胞的关键,具有潜在的爱泼斯坦-巴尔病毒感染。c反应蛋白的诊断依赖于免疫组化和ISH的结果,具有严格的临床相关性。因此,详细的HNSCC变异临床病理特征是基础,因为它提供了诊断、治疗和预后影响的有价值的数据。
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引用次数: 0
Impact of surgical technique on histopathological specimen quality: Transurethral resection of the prostate versus bipolar enucleation of the prostate 手术技术对组织病理学标本质量的影响:经尿道前列腺切除术与双极前列腺切除术。
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-09-25 DOI: 10.1016/j.anndiagpath.2025.152564
Onur ERTUNÇ , Taylan OKSAY , Enes Emre AŞMAN , Kadir ERYILMAZ
This study examines the effects of Transurethral Resection of the Prostate (TURP) and Bipolar Enucleation of the Prostate (BipoLEP) techniques on the histopathological quality of specimens in benign prostatic hyperplasia surgery. A retrospective analysis was conducted on 200 patients (100 TURP, 100 BipoLEP) treated at a single center between January 2021 and January 2023. Specimens were systematically evaluated for artifacts, including fragmentation, thermal, telescoping, sectioning, processing, and staining artifacts. The relationship between surgical technique and artifact types was analyzed using independent samples t-tests, while pathological diagnoses were compared using the chi-square test. Additionally, a pilot group of 10 patients (5 TURP, 5 BipoLEP) underwent immunohistochemical analysis with p63, p27, and androgen receptor to assess antigen preservation. Fragmentation was significantly higher in the BipoLEP group (87 %) compared to the TURP group (6 %) (p < 0.001). Conversely, thermal artifacts were notably more frequent in TURP specimens (97 %) than in BipoLEP (22 %) (p < 0.001). Sectioning artifacts were observed more often after TURP (24 %) compared to BipoLEP (4 %) (p < 0.001), while telescoping artifacts were also more prevalent in BipoLEP (90 %). No significant differences were detected between groups regarding processing or staining artifacts. Both techniques provided comparable diagnostic adequacy and rates of incidental prostate cancer detection. In conclusion, the choice of surgical technique substantially influences the type and frequency of histological artifacts. Therefore, awareness of the surgical method is vital for pathologists to ensure accurate interpretation and optimal patient management.
本研究探讨了经尿道前列腺切除术(TURP)和双极前列腺摘除(BipoLEP)技术对良性前列腺增生手术标本组织病理学质量的影响。回顾性分析了在2021年1月至2023年1月期间在单一中心接受治疗的200例患者(100例TURP, 100例BipoLEP)。系统地评估标本的人工制品,包括破碎,热,伸缩,切片,处理和染色人工制品。手术技术与伪影类型的关系采用独立样本t检验进行分析,病理诊断采用卡方检验进行比较。此外,一组10例患者(5例TURP, 5例BipoLEP)接受p63, p27和雄激素受体的免疫组织化学分析,以评估抗原保存情况。BipoLEP组骨折发生率(87%)明显高于TURP组(6%)
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引用次数: 0
Evaluation of gastrointestinal biopsies with two-slide serial sections: Analysis of 1715 cases with emphasis on clinical impact 胃肠活检双片连续切片的评价:分析1715例,重点分析临床影响。
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-09-23 DOI: 10.1016/j.anndiagpath.2025.152566
Nuray Tezcan , Rohat Esmer , Gulbanu Canbaloglu , Gokhan Baysoy , Pınar Korkmaz , Merve Senturk , Serdar Balci , Burcu Saka
Although serial sectioning may improve diagnostic yield, no standardized protocol currently exists for endoscopic gastrointestinal (GI) biopsies. The aim of this study was to determine whether examining two serially sectioned slides from each biopsy specimen increases the detection of clinically relevant histopathological findings. In this prospective study, 1715 endoscopic GI biopsy specimens were evaluated using a two-slide serial sectioning approach, with eight consecutive sections per slide. A diagnostic discrepancy was defined as the presence of a histopathological finding on one slide that was absent on the other, thereby representing slide-to-slide variability in detection. Each biopsy specimen was treated as an individual case for serial sectioning and diagnostic assessment purposes, regardless of patient identity, as the study focused on per-sample diagnostic variability. Diagnostic discrepancies between slides were found in 2.2 % of cases, with 1.4 % deemed clinically significant. These included both gain of additional findings on the second slide and loss of findings that were present only on the first slide. Intestinal metaplasia was the most frequently observed clinically relevant finding, particularly in antral biopsies. Importantly, no additional malignancies were identified on second slides, and none of the biopsy-related variables showed a significant association with diagnostic discrepancies. Overall, these findings suggest that, while infrequent, diagnostic discrepancies introduced by serial sectioning may have meaningful clinical implications—particularly in detecting preneoplastic conditions such as intestinal metaplasia in the antrum.
虽然连续切片可以提高诊断率,但目前还没有内镜下胃肠道活检的标准化方案。本研究的目的是确定检查每个活检标本的两个连续切片切片是否增加了临床相关组织病理学发现的检测。在这项前瞻性研究中,使用两张切片连续切片方法对1715例内镜下胃肠道活检标本进行评估,每张切片连续切片8张。诊断差异被定义为在一张载玻片上存在组织病理学发现,而在另一张载玻片上不存在,从而代表了检测的不同载玻片。无论患者身份如何,每个活检标本都被视为一个单独的病例,用于连续切片和诊断评估,因为研究的重点是每个样本的诊断变异性。在2.2%的病例中发现载玻片之间的诊断差异,其中1.4%被认为具有临床意义。这包括第二张幻灯片上的额外发现的增加和只出现在第一张幻灯片上的发现的减少。肠化生是最常见的临床相关发现,特别是在胃窦活检中。重要的是,在第二张载玻片上没有发现其他恶性肿瘤,活检相关变量也没有显示出与诊断差异的显著关联。总的来说,这些发现表明,虽然不常见,但由连续切片引起的诊断差异可能具有重要的临床意义,特别是在检测肿瘤前病变(如胃窦肠化生)时。
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引用次数: 0
“Letter to the editor: MTAP and p16 as immunohistochemical surrogates of CDKN2A/B homozygous deletion in central nervous system tumors: A multicentre Italian experience.”- Reply 致编辑的信:MTAP和p16作为中枢神经系统肿瘤中CDKN2A/B纯合缺失的免疫组化替代物:一项多中心的意大利经验。”——回复
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-09-19 DOI: 10.1016/j.anndiagpath.2025.152563
Serena Salzano , Giuseppe Broggi
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引用次数: 0
Histomorphology and utility of CK17, p53 dual stain with CK 13 in the diagnosis of differentiated vulvar intraepithelial neoplasia CK17、p53双染色与ck13在分化型外阴上皮内瘤变诊断中的组织形态学及应用
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-09-12 DOI: 10.1016/j.anndiagpath.2025.152561
Bushra K. Altarawneh , M. Ruhul Quddus , Kamaljeet Singh , C. James Sung , Shivali Marketkar
Differentiated vulvar intraepithelial neoplasia (dVIN) is a known precursor for HPV-independent vulvar squamous cell carcinoma (VSCC). Diagnosis of dVIN can be challenging, and immunohistochemistry (IHC) may be a useful aid in this setting. A mutated pattern of p53 staining is associated with dVIN. This retrospective study evaluated the histological features and immunohistochemical utility of p53/Cytokeratin 17 (CK17) dual staining and cytokeratin 13 (CK13) staining in dVINs. At our institution, the diagnosis of dVIN is primarily based on morphology, and p53 stain is not routinely performed, especially in cases with concurrent invasive carcinoma or in recurrences. Thirty-two cases of dVIN identified from the pathology archives included 21 cases with p53 mutations and 11 cases without p53 mutations. Fourteen cases were biopsies. The staining patterns of CK17 and CK13 were compared in p53-mutated and non-mutated dVINs. p53/CK17 dual stain was used, which helped assess aberrant CK17 staining patterns adjacent to the mutated p53 patterns. Of the p53-mutated dVINs, 18/21(85.7 %) cases showed full-thickness CK17 staining. Of the remaining 11 cases with p53 wild-type staining, 5 cases showed full-thickness CK17 staining (45 %). Of the p53-mutated dVIN cases, 8/21 (38.09 %) showed full-thickness CK13 staining. Only 2/21 (9.5 %) showed loss of CK13 staining, as seen in oral dysplasia. Amongst dVINs with wild-type p53 staining, 50 % showed full-thickness CK13 staining. None of the lichen sclerosus cases showed full-thickness staining for CK13. The utility of CK13 staining in dVIN has been studied in only one previous study. A Panel consisting of p53, CK13, and CK17 antibodies may aid in increasing the accuracy of dVIN diagnosis, especially when a full-thickness staining pattern of CK13 and CK17 is noted. Further investigation of dVINs with full-thickness CK13 staining in a larger cohort is needed to confirm the results.
分化外阴上皮内瘤变(dVIN)是已知的不依赖hpv的外阴鳞状细胞癌(VSCC)的前兆。dVIN的诊断可能具有挑战性,免疫组织化学(IHC)在这种情况下可能是有用的帮助。p53染色的突变模式与dVIN有关。本回顾性研究评估了p53/细胞角蛋白17 (CK17)双染色和细胞角蛋白13 (CK13)染色在dVINs中的组织学特征和免疫组织化学应用。在我们的机构,dVIN的诊断主要基于形态学,p53染色并不是常规的,特别是在合并浸润性癌或复发的情况下。32例dVIN病理资料中有p53突变21例,无p53突变11例。活检14例。比较p53突变和非突变dVINs中CK17和CK13的染色模式。使用p53/CK17双染色,这有助于评估与突变p53模式相邻的异常CK17染色模式。在p53突变的dVINs中,18/21(85.7%)的病例显示全层CK17染色。其余11例p53野生型染色中,5例显示全层CK17染色(45%)。在p53突变的dVIN病例中,8/21(38.09%)显示全层CK13染色。只有2/21(9.5%)的患者显示CK13染色缺失,如口腔发育不良。在野生型p53染色的dvin中,50%显示全层CK13染色。所有硬化地衣病例均未见CK13全层染色。CK13染色在dVIN中的应用仅在一项先前的研究中被研究过。由p53, CK13和CK17抗体组成的小组可能有助于提高dVIN诊断的准确性,特别是当注意到CK13和CK17的全层染色模式时。需要在更大的队列中进一步研究全层CK13染色的dvin来证实结果。
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引用次数: 0
Letter to the editor: “p63 immunohistochemical expression in tumor cells of high-grade invasive breast carcinomas on core biopsy: a potential diagnostic pitfall” 致编辑的信:“p63免疫组织化学在高级别浸润性乳腺癌核心活检肿瘤细胞中的表达:一个潜在的诊断陷阱”。
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-09-12 DOI: 10.1016/j.anndiagpath.2025.152562
Sanhia Maheshwari
{"title":"Letter to the editor: “p63 immunohistochemical expression in tumor cells of high-grade invasive breast carcinomas on core biopsy: a potential diagnostic pitfall”","authors":"Sanhia Maheshwari","doi":"10.1016/j.anndiagpath.2025.152562","DOIUrl":"10.1016/j.anndiagpath.2025.152562","url":null,"abstract":"","PeriodicalId":50768,"journal":{"name":"Annals of Diagnostic Pathology","volume":"80 ","pages":"Article 152562"},"PeriodicalIF":1.4,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reliability of minimally invasive tissue sampling (MITS) for cause of death determination up to 72 h postmortem 微创组织取样(MITS)在死后72小时内确定死因的可靠性。
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-09-05 DOI: 10.1016/j.anndiagpath.2025.152559
Juan Carlos Hurtado , Natalia Rakislova , Núria Peñuelas , Carla Carrilho , Fabiola Fernandes , Luisa Jamisse , Mireia Navarro , Alba Morató , Laia Diez-Ahijado , Isaac Casas , Lucilia Lovane , Jessica Navero , Cesaltina Lorenzoni , Rosauro Varo , Assucena Guisseve , Lorena Marimon , Anelsio Cossa , Inacio Mandomando , Lia Sisuashvili , Jordi Vila , Jaume Ordi
Minimally invasive tissue sampling (MITS) is a postmortem technique that involves percutaneous needle sampling of key organs and fluids, offering a practical alternative to complete autopsy for determining cause of death (CoD), a critical factor in reducing mortality. In low- and middle-income settings, autopsies are rarely performed, particularly in the first hours after death. To assess the impact of postmortem interval (PMI) on MITS diagnostic performance, we compared CoD determinations from repeated MITS procedures at different PMIs in the same individuals and analyzed changes in histological and microbiological findings over time. We conducted serial MITS at 24, 48, and 72 h after death in nine adults who died at Maputo Central Hospital, Mozambique, between June 2017 and January 2018. The process included thorough histological and microbiological analyses.
Results showed that MITS maintained consistent diagnostic accuracy across all PMIs. While histological findings showed minor changes over time, these did not significantly affect CoD determination. Microbiological analyses revealed a substantial increase (p < 0.0001) in Enterobacteriaceae isolation with longer PMIs, whereas fungal and parasitic detection remained stable, and viral isolations declined. These findings highlight that MITS remains reliable for postmortem diagnosis even when performed up to 72 h after death, offering crucial utility in settings where immediate autopsies are unfeasible.
微创组织取样(MITS)是一种尸检技术,涉及关键器官和液体的经皮穿刺取样,为确定死因(CoD)提供了一种实际的替代方法,这是降低死亡率的关键因素。在低收入和中等收入环境中,很少进行尸检,特别是在死亡后的最初几个小时内。为了评估死后间隔(PMI)对MITS诊断性能的影响,我们比较了同一个体不同PMI下重复MITS程序的CoD测定结果,并分析了组织学和微生物学结果随时间的变化。我们对2017年6月至2018年1月期间在莫桑比克马普托中心医院死亡的9名成年人在死亡后24、48和72小时进行了连续的MITS。这一过程包括彻底的组织学和微生物学分析。结果表明,MITS在所有pmi中保持一致的诊断准确性。虽然组织学结果显示随着时间的推移有微小的变化,但这些变化对CoD的测定没有显著影响。微生物学分析显示了大量的增加(p
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引用次数: 0
In reply: SOX10 and TRPS1 in triple-negative breast cancer: Promise, pitfalls, and the need for broader validation SOX10和TRPS1在三阴性乳腺癌中的应用:前景、缺陷和需要更广泛的验证
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-09-04 DOI: 10.1016/j.anndiagpath.2025.152558
Shaimaa Abdelraouf Elgohary
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引用次数: 0
Diagnostic value of SSTR2A, ATRX, and clusterin immunohistochemical expression in high-grade gastroenteropancreatic neuroendocrine neoplasms SSTR2A、ATRX和clusterin免疫组化表达在高级别胃肠胰神经内分泌肿瘤中的诊断价值
IF 1.4 4区 医学 Q3 PATHOLOGY Pub Date : 2025-09-04 DOI: 10.1016/j.anndiagpath.2025.152560
Yutong Fu, Shixuan Du, Saisai Nie, Qiqi Shao, Wenli Guo, Yuehong Li , Lei Lou
High-grade gastroenteropancreatic neuroendocrine neoplasms (NENs) are a heterogeneous group of rare tumors, classified into well-differentiated neuroendocrine tumors grade 3 (G3 NETs) and poorly differentiated neuroendocrine carcinomas (NECs). Distinguishing G3 NETs from NECs is challenging. We aimed to summarize the clinicopathologic characteristics of G3 NETs; examine the expression of somatostatin receptor 2A (SSTR2A), clusterin, and ATRX in G3 NETs and NECs; and explore the diagnostic and prognostic value of combining these markers for the differential diagnosis of G3 NETs. Data on 87 patients with high-grade NENs (G3 NETs: 18, NECs: 69) were retrospectively collected and classified according to the 5th edition of the WHO Classification of Digestive System Tumors. Immunohistochemistry was performed for SSTR2A, ATRX, and clusterin. Relationships between protein expression and clinicopathological features were analyzed. The diagnostic significance of combining these markers was assessed using receiver operating characteristic curves. SSTR2A protein expression, loss of ATRX expression, and positivity rate for clusterin were significantly higher in G3 NETs than in NECs [77.8 % (14/18) vs. 42.0 % (29/69), 61.1 % (11/18) vs. 33.3 % (23/69), and 77.8 % (14/18) vs. 30.4 % (21/69), respectively]. ATRX expression loss was significantly more common in large-cell than small-cell NECs. In differentiating G3 NETs from NECs, the area under the curve of the combined diagnosis using SSTR2A, clusterin, and ATRX was significantly higher than the individual values (0.833 vs. 0.679, 0.737, and 0.639, respectively). Combining SSTR2A, clusterin, and ATRX improves diagnostic accuracy. Our immunohistochemical assessment provides diagnostic insights for distinguishing G3 NETs from NECs.
高级别胃肠胰神经内分泌肿瘤(NENs)是一类异质性的罕见肿瘤,分为3级高分化神经内分泌肿瘤(G3 NETs)和低分化神经内分泌癌(NECs)。区分G3网络和nec是一项挑战。我们旨在总结G3 NETs的临床病理特点;检测G3 NETs和NECs中生长抑素受体2A (SSTR2A)、clusterin和ATRX的表达;并探讨联合这些标志物对G3 NETs鉴别诊断的诊断和预后价值。回顾性收集87例高级别NENs (G3 NETs: 18例,nec: 69例)患者资料,并根据WHO第5版消化系统肿瘤分类进行分类。对SSTR2A、ATRX和clusterin进行免疫组化。分析蛋白表达与临床病理特征的关系。使用受试者工作特征曲线评估联合这些指标的诊断意义。G3 NETs的SSTR2A蛋白表达、ATRX表达缺失和clusterin阳性率均显著高于nec[分别为77.8%(14/18)比42.0%(29/69)、61.1%(11/18)比33.3%(23/69)、77.8%(14/18)比30.4%(21/69)]。ATRX表达缺失在大细胞NECs中比在小细胞NECs中更为常见。在G3 NETs与nec的鉴别中,SSTR2A、clusterin、ATRX联合诊断的曲线下面积显著高于单个值(分别为0.833、0.679、0.737、0.639)。联合使用SSTR2A、clusterin和ATRX可以提高诊断的准确性。我们的免疫组织化学评估为区分G3 NETs和nec提供了诊断见解。
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引用次数: 0
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Annals of Diagnostic Pathology
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